Answer:
Each of her parents must have one recessive gene for blond hair color
Explanation:
- Blond is a recessive trait
- Since Silvia is blond this means she has both copies of the recessive gene for hair color
- Therefore, both her parents have a recessive gene for blond hair and passed it down to her.
- The parents don't have blond hair because their dominant gene for browns masks the recessive gene for blond.
Population control is the practice of artificially maintaining the size of any population. It typically refers to the act of limiting the size of an animal population so that it remains manageable, as opposed to the act of protecting a species from excessive rates of extinction, which is referred to as conservation biology.
theory of continental drift, the world was made up of a single continent through most of geologic time. ... According to the generally acceptedplate-tectonics theory<span>, scientists believe that Earth's surface is broken into a number of shifting slabs or </span>plates<span>, which average about 50 miles in thickness....</span>
The fitness professionals can show the licenced athletic trainers exercises that strengthen the muscles used by different types of athletes who use different muscles say in weightlifting compared to badminton or volleyball for example.
It helps compare the frequencies of light.
